SLP's new 2010 V8 Camaro 4-into-1 Long-Tube Header System features equal-length 1-3/4" main primaries flowing into 3" high flow collectors. The headers are mandrel bent 409 stainless steel and ceramic coated to keep heat in, exhaust velocity up, and under-hood temperatures down, while the rest of the system is made from high-quality stainless steel. These headers will install onto your L99 or LS3 Camaro's engine without any modifications, not to mention ease of installation. Clearances around all wire harnesses, vacuum lines and AC lines meet or exceed factory clearances. Best of all, SLP's complete header package netted +23 RWHP and +21ft-lbs gains over the stock factory system AT THE WHEELS. (Gains above are with NO TUNE on an otherwise bone stock L99 Automatic 2010 Camaro; don't be fooled by other power gains that INCLUDE a tune). We designed our complete header packages to provide you with the most horsepower and torque possible.